deflectometer การใช้

• A Light Weight Deflectometer ( LWD ) is a portable falling weight deflectometer.
• A Light Weight Deflectometer ( LWD ) is a portable falling weight deflectometer.
• Light Weight Deflectometer ( LWD ) is quicker than the isotope measuring method and requires no reference measurements.
• A Heavy Weight Deflectometer ( HWD ) is a falling weight deflectometer that uses higher loads, used primarily for testing airport pavements.
• A Heavy Weight Deflectometer ( HWD ) is a falling weight deflectometer that uses higher loads, used primarily for testing airport pavements.
• A Rolling Weight Deflectometer ( RWD ) is a deflectometer that can gather data at a much higher speed ( as high as 55 mph ) than the FWD . It is a specially designed tractor-trailer with laser measuring devices mounted on a beam under the trailer.
• A Rolling Weight Deflectometer ( RWD ) is a deflectometer that can gather data at a much higher speed ( as high as 55 mph ) than the FWD . It is a specially designed tractor-trailer with laser measuring devices mounted on a beam under the trailer.